• Journal of radiological science and technology
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• v.27 no.3
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• pp.25-29
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• 2004

Among the digital radiography systems, the computed radiography Image Plate Detector System is most frequently being used for the general radiography and also this system commonly diffracts the x-ray images since it is the system that is influenced by the light diffusion from the fluorescent substances. In this study, by using the X-ray Generator, a comparative analysis has been made between 2 different models of computer radiography image plate investigate each model's resolution and sharpness through the modulation transfer function(MTF) measurement. For the analysis, two image plates for general radiography one Fuji ST-VN model(more than 3years old) and one Fuji ST-VL model(less than 2years old) that are currently being used in "Hospital A" were sampled for the MTF measurement here. As the experimental method for this study, the resolution chart method has been carried out by using X-ray generator. Also all the experimental data were printed out by laser printer and measured by microdensitometer. As the results of the experiment carried out in this study, some differences have been found between the two different IP models and Fuji ST-VL has shown its excellence in both of the resolution and the sharpness fields.

• Journal of the East Asian Society of Dietary Life
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• v.19 no.3
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• pp.444-450
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• 2009

This study examined the preferred salinity levels of soups by different demographic groups in order to establish desirable serving conditions for soups with respect to customer satisfaction and health. The salinity levels were measured in August and November to determine seasonal variations using a digital salinity measuring device. Four demographic groups totaling 1,723 individuals were surveyed from institutional foodservice establishments (IFEs) in elementary schools (ES: male 202/female 194), middle-high schools (MHS: 268/216), universities (UNIV: 208/238), and companies (COM: 182/215) in Seoul. Various thin or thick soups typically offered in foodservice establishments were served salty (1.2%) and less salty (0.4%) at $55{\pm}2^{\circ}C$ in a 50 mL portion. The preferred salinities of the soups were found to be 0.71%, 0.79%, 0.76%, and 0.74% for ES, MHS, UNIV, and COM, respectively. Men had 0.02~0.08% higher preferences than women in ES, MHS and UNIV. The customers also preferred higher salinity levels in November than in August, and in thick soups than in thin soups. The salinities preferred by school children were significantly (p<0.01) lower than those of soups by the IFEs. A similar observation was made for MHS, in which each IFE served the soups with significantly (p<0.01) higher salinities than those preferred by the students. Again, at two COM IFEs, the salinities of the soups served were significantly higher than those preferred by the customers. However, for one of UNIV, the salinity of the served soup was significantly (p<0.05) higher than that preferred by the students, while in the two other UNIV no significant differences were noted between the salinity of the served soup and the level preferred by customers. The surveys showed that 9 out of 12 IFEs served soups having salinities that were significantly higher than those preferred by customers. In particular, regardless of preference, the MHS group was served soups with higher salinity levels than the other demographic groups. The salinities of the soups provided by the IFEs were unnecessarily high for the levels preferred by the customers. Therefore, IFEs should make an effort to serve soups that are less salty soups to enhance public health.

• Journal of Convergence for Information Technology
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• v.10 no.2
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• pp.167-175
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• 2020

This study look at the types of conflict that can be the biggest cause of hospital staff turnover, and the project was to provide useful information for stable manpower management of hospital organizations by identifying the factors of can alleviate turnover. The research method collected survey data for administrative and nursing staff from September 16, 2019 to September 30, and conducted t-test, ANOVA, Pearson χ², Regression analysis. According to the analysis, more than half of the respondents said they would relocate if Don't have anything to get from hospital. Factors affecting the Current turnover intention of Administration staff were Superior's egocentric remarks and action, and Unclear job instruction. And Nurses were Superiors' egocentric remarks and action, and Dismissive behavior and unpleasant remarks. Thus, the need to examine organizational culture at the organizational level and organizational culture at the department level was raised.

• Journal of Convergence for Information Technology
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• v.10 no.7
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• pp.168-175
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• 2020

The purpose of this study was to identify how career management activities of hospital administration workers are related to the satisfaction with the working environment compared to career goals. The research method collected survey data from April 1, 2020 to April 15, 2020 for hospital administration workers, and conducted t-test, ANOVA, logistic regression. According to the analysis, career management activities and the satisfaction with the working environment compared to career goals of hospital administration workers was slightly above the normal level, and there were no significant differences between university hospitals and general hospitals. And Satisfaction with the working environment compared to career goals showed that there was a significant positive impact on the mentor relationship formation activities for career management at the individual level. These results are thought to be useful information for setting career management plans for hospital administration workers.

• Journal of Convergence for Information Technology
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• v.10 no.11
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• pp.340-350
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• 2020

This study was conducted to present comprehensive professionalism measurement tools suitable for hospital administration staffs. The study used measurement tools related to the psychological and behavioral characteristics of individuals used in prior studies for administration staffs at general hospitals and hospitals. Factor analysis and reliability analysis were conducted to verify the validity and internal relevance. As a result of the analysis, it was concluded that composed of 5 factors, and that the total reliability was 94.4%, which was very reasonable as a comprehensive professionalism measurement tool. Therefore, each component was defined as Confidence of Job performance, Salary Adequacy, Pride in Duties, Ability to achieve work goals, and Work Autonomy in order to provide a clear meaning. Professionalism from a modern perspective is a broader concept than traditional professionalism, including the subjective perceptions of job values and individuals' their abilities. Therefore, comprehensive professionalism measurement tools presented in this study will be very suitable and useful for hospital administration staffs.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.3
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• pp.123-129
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• 2009

Ubiquitous home is emerging as the future digital home environments that provide various ubiquitous home services like u-Life, u-Health, etc. It is composed of some home appliances and sensors which are connected through wired/wireless network. Ubiquitous home services become aware of user's context with the information gathered from sensors and make home appliances adapt to the current home situation for maximizing user convenience. In these context-aware home environments, it is the one of significant research topics to predict user behaviors in order to proactively control the home environment. In this paper, we propose Multi-Level prediction algorithm for context-aware services in ubiquitous home environment. The algorithm has two phases, prediction and execution. In the first prediction phase, the next location of user is predicted using tree algorithm with information on users, time, location, devices. In the second execution phase, our table matching method decides home appliances to run according to the prediction, device's location, and user requirement. Since usually home appliances operate together rather than separately, our approach introduces the concept of mode service, so that it is possible to control multiple devices as well as a single one. We also devised some scenarios for the conceptual verification and validated our algorithm through simulations.

• The KIPS Transactions:PartD
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• v.15D no.6
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• pp.861-872
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• 2008

As rapid development of computing environment, field of automatic identification research which interoperates with various physical objects and digital information is making active progress. Although the automatic identification system is widely used in various industries, application of automatic identification system in the field of medical health doesn't reach other industry. Therefore research in medical health supplies such as medical equipment, blood, human tissues and etc is on progress. This paper suggests the application of automatic identification technology for biological resources which is core research material in human genome research. First of all, user environment requirements for the introduction of automatic identification technology are defined and through the experiments and research, barcode is selected as a suitable tag interface. Data Matrix which is 2D barcode symbology is chosen and data schema is designed based on UCC/EAN-128 for international defecto standard. To showapplicability of proposed method when applied to actual environment, we developed, tested and evaluated application as following methods. Experiments of barcode read time at 196 and 75 below zero which is actual temperature where biological resources are preserved resulted read speed of average of 1.6 second and the data schema satisfies requirements for the biological resources application. Therefore suggested method can provide data reliability as well as rapid input of data in biological resources information processing.

• Journal of dental hygiene science
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• v.18 no.4
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• pp.265-270
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• 2018

The purpose of this study was to investigate the chemical properties of some commercially available mouthwashes and to ascertain whether the mouthwashes accelerated mineral loss in dental enamel. Five commercially available mouthwashes were selected from the three largest malls in Korea: Perio Total 7 Aqua Cool Mint Strong $Fresh^{TM}$ (PS; LG Household & Health Care Ltd.), Garglin $Original^{TM}$ (Dong-A Pharmaceutical Co., Ltd.), Garglin $Zero^{TM}$ (Dong-A Pharmaceutical Co., Ltd.), Listerine Naturals $Citrus^{TM}$ (LC; IDS Manufacturing Ltd.), and Listerine Cool $Mint^{TM}$ (LM; IDS Manufacturing Ltd.). The composition, pH, and titratable acidity of the mouthwashes were investigated. Six bovine teeth specimens were prepared for each mouthwash group. Each of the six specimens was individually immersed in 30 ml aliquots of mouthwash for 1 minute, 30 minutes, 90 minutes, and 120 minutes, and the samples were placed in a $36.5^{\circ}C$ stirred incubator. The degree of mineral loss (${\Delta}F$) of the tooth surface area exposed to mouthwash, compared with normal teeth, was analyzed by quantitative light-induced fluorescence-digital. The difference in ${\Delta}F$ among mouthwash groups was examined by the Kruskal-Wallis H test (${\alpha}=0.05$). The contents of mouthwashes differed between Listerine and other products, and the pH ranged from 4.09 to 6.75. The titratable acidity of PS was the lowest at 0.63 ml and highest at 9.25 ml for LM. Minor mineral loss was observed when dental specimens were immersed in the Listerine products (LC and LM) for more than 90 minutes, but the degree of mineral loss for Listerine products was not statistically significantly different from that for groups without mineral loss. In conclusion, all five commercially available mouthwashes showed no harmful effects on tooth enamel.

• Journal of the Korean Society for Library and Information Science
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• v.52 no.1
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• pp.341-357
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• 2018

Due to the paradigm of open science and advanced digital information technology, data sharing and re-use have been actively conducted and considered data-intensive in a wide variety of disciplines. This study aims to investigate the intellectual structure portrayed by the research products re-using the data sets from ICPSR. For the purpose of this study, a total of 570 research products published in 2017 from the ICPSR site were collected and analyzed in two folds. First, the authors and publications of those research products were analyzed in order to show the trends of research using ICPSR data. Authors tend to be affiliated with university or research institute in the United States. The subject areas of journals are recognized into Social Sciences, Health, and Psychology. In addition, a network with clustering analysis was conducted with using co-word occurrence from the titles of the research products. The results show that there are 12 clusters, mental health, tabocco effect, disorder in school, childhood, and adolescence, sexual risk, child injuries, physical activity, violent behavior, survey, family role, women, problem behavior, gender differences in research areas. The structure portrayed by ICPSR data re-uses demonstrates that substantial number of studies in Medicine have been conducted with a perspective of social sciences.

• Journal of dental hygiene science
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• v.12 no.6
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• pp.566-571
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• 2012

Marginal and internal fit are very important factor for the clinical long-term success of fixed dental prostheses (FDPs). A variety of methods have been applied to the measuring marginal and internal fit of FDPs. The purpose of this study was to compare the marginal and internal fit of 2 different measuring methods silicone replica technique [SRT] and die cutting technique (DCT). SRT, the space between die and FDPs were filled with light-body silicone, then stabilized by medium-body silicone. DCT, the FDPs were cemented on definitive dies and embedded into epoxy. The silicone replicas and epoxies were sectioned mesio-distal and measured 4 locations (margin, rounded chamfer, axial, occlusal) and using a digital microscope at a magnification $\times$160. For the SRT the mean${\pm}$SDs fit (${\mu}m$) recorded were: margin $88.7{\pm}22.2$, rounded chamfer $90.6{\pm}25.0$, axial wall $61.5{\pm}21.8$, occlusal $134.9{\pm}30.8$. For the DCT the mean${\pm}$SDs fit (${\mu}m$) recorded were: margin $85.3{\pm}18.0$, rounded chamfer $85.4{\pm}24.7$, axial wall $62.0{\pm}21.3$, occlusal $131.7{\pm}30.5$. The mean${\pm}$SDs size (${\mu}m$) of SRT margin was $88.7{\pm}22.2$ and of DCT margin was $85.3{\pm}18.0$. There were no statistically significant difference (p<0.05) of the four parts between SRT and DCT. It is considered an appropriate case to use SRT at fit of FDPs.